GlobalSat WorldCom Corp. was established in 2000, is major manufacturer of GPS receivers and electronic communications in the world . GlobalSat has refined its core product lines to GPS applications, which consist of GPS Tracking System (GSM/GPRS/SMS communication with GPS/A-GPS), Wrist Type GPS Personal training Devices, GPS Engine Boards/Modules, All-In-One Car Navigator, Bluetooth GPS, Cable GPS, SDIO/Compact Flash GPS, and GPS System Integration.